Report No. G100463637MID-005R2 Report Revised Date: January 26, 2015
Page 4 of 15
Client: Dectra Corporation
Model: WHS2000
I.
INTRODUCTION
I.A.
GENERAL
From October 3, 2011 to October 6, 2011 Intertek Testing Services NA Inc. (Intertek) conducted tests on the WHS2000 Solid Fuel Hydronic Heater to determine emission and efficiency results for Dectra Corporation. Tests were conducted by Ken Slater at the Dectra Corporation facility located at 1162 Red Fox Road, Arden Hills, Minnesota. Tests were originally evaluated to the Appendix X1 Modified test method for wood-fired hydronic appliances that utilize thermal storage for ASTM E2618-09 Standard Test Method for Measurement of Particulate Emissions and Heating Efficiency of Outdoor Solid Fuel-Fired Hydronic Heating Appliances. This report has been revised to reflect calculated values as specified in the 2013 edition of ASTM E2618 Annex A1. No changes have been made in the test procedure or measurement process from the 2009 edition. The only change of significance is the use of more accurate higher and lower heating values for the fuel. This revision also corrects an error in the stand-by loss calculation formula.
I.B.
TEST UNIT DESCRIPTION
The model WHS2000 is a solid fueled unit with a 14.15 cubic foot firebox constructed of carbon sheet steel, and weighs 3574 lbs. dry. The heat exchanger extends through the water vessel, which holds 15588 lbs. of water. This corresponds to a total water capacity of 1870 gallons. This appliance is designed as a full heat storage system which has the capacity to safely store 100% of the output produced by burning a single full fuel load of seasoned cordwood. The appliance consists of a large horizontal cylindrical steel tank with a firebox installed in a vertical head which connects to a ceramic fiber refractory lined secondary combustion chamber and then to steel piping which makes several passes through the water in the tank and exits through the rear head where it connects to a chimney collar. Combustion air is supplied through a pipe that routes air to a front and delivers some air through openings above and below the firebox door that aim at the front of the firebox and over the fuel to supply secondary air to the secondary combustion chamber. The firebox is lined on the bottom with firebrick. The blower is operated by a controller that turns it off when the flue gas temperature approaches the water temperature.
Made with FlippingBook - professional solution for displaying marketing and sales documents online